Am Dienstag 17 November 2009 20:36:46 schrieb Daniel Fischer:
> What you probably wanted was
>> type MyHashTable = HashTable String Int -- not data MyHashTable
>
Just in case it's not clear:
> ht <- new (==) dummy :: IO MyHashTable
only works at the prompt or in an IO do-block, not at the top level of the module.
>> then ht is a hashtable of type MyHashTable.